The rocky underwater world of the Similan Islands and Thailand's premier dive site, Richelieu Rock.
A hawksbill turtle swims through a flurry of fish at Richelieu Rock, Thailand's premier dive site.
A diver explores Thailand's premier dive site, Richelieu Rock.
A diver explores Richelieu Rock, Thailand's premier dive site.
The Similan Islands are known for their boulders - above and below the water.
Anemonefish swim close to their anemone, Similan Islands.